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ABS with raft awful bottom of object  

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El_Draque
(@el_draque)
Active Member
ABS with raft awful bottom of object

I am printing with eSun ABS on the smooth sheet with glue stick and I am printing with Raft (3 layers) + Brim (8 lines) to try to prevent warping which sometimes its still warping...but anyways when the print is finished and i pry the raft off I am left with a very awful looking bottom of the print, how can I prevent this?

 

Posted : 20/08/2021 3:49 pm
cwbullet
(@cwbullet)
Illustrious Member
Raft

I am not sure why you are using a raft.  Can you post an image of what the print is supposed to look like?  

I rarely use a raft.

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Chuck H
3D Printer Review Blog...
Posted : 20/08/2021 4:10 pm
El_Draque
(@el_draque)
Active Member
Topic starter answered:
Re: cwbullet

its just flat bottomed. I am trying with raft to attempt to prevent edge warping which i have been having in almost every print. I am printing in a small closet so drafting isnt an issue

 

Posted : 20/08/2021 5:11 pm
mark
 mark
(@mark-3)
Estimable Member
Use a Draft Shield

I haven't used ABS, but have used ASA. A draft shield works well for me, spaced away from the object but as tall. It keeps the heat in better. I just clean the bed, never using a glue stick. Prusa does not recommend a glue stick for ABS either. Aren't the fumes bad? I have a vented enclosure with outside exhaust for printing ASA, just enough air flow to not get fumes in the room. I've never had problems with bed adhesion. Overhangs don't do well though.

Regards,

Mark

Posted : 21/08/2021 4:55 am
towlerg
(@towlerg)
Noble Member
Is a raft suitable to prevent warping?

I'm pretty sure a raft would make warping worst. Try a nice big brim, mouse ears and a draft shield. Ultimately an enclosure.

Posted : 21/08/2021 9:06 am
cwbullet
(@cwbullet)
Illustrious Member
RE: Raft

 

Posted by: @towlerg

I'm pretty sure a raft would make warping worst. Try a nice big brim, mouse ears and a draft shield. Ultimately an enclosure.

That is my experience.  

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Chuck H
3D Printer Review Blog...
Posted : 21/08/2021 7:17 pm
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